3.10.1.3 ms-source-verified-user parameter

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The header field can contain the ms-source-verified-user parameter. If the ms-source-type parameter value is equal to "InternetUser", the value of the ms-source-verified-user parameter MUST be set to "verified" because From user’s identity is always verified for messages received from remote users.

If the ms-source-verified-user parameter is added:

  • A parameter value of "verified" can be used to indicate that the federated partner or public IM provider is trusted to verify the From user's identity and that the federated partner or public IM provider has verified the From user's identity.

  • A parameter value of "unverified" can be used to indicate that either the federated partner or public IM provider is not trusted to verify the From user's identity or that the federated partner or public IM provider has not been able to verify the From user's identity.